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reference standard
相关语句
  参考标准
    Results:Comparison with WHO reference standard,the results indicated the rate of overweight and obese children was high,which amounts to 12.0%.
    结果 :与世界卫生组织 (WHO)的参考标准相比 ,超重及肥胖儿童较多 ,共占 12 .0 %。
短句来源
    Objective:To comprehend the condition blood pressure (BP) at puberty and study the evaluation reference standard for puberty BP.
    目的:了解青春期血压状况,探讨青春期血压的评价参考标准
短句来源
    Conclusion: The respective percentile of BP may be considered as the reference standard for puberty BP for Henan's teen-agers (aged 14-18 years)Preventing hypertension should be done from the childhood and teen-agers.
    结论:血压各百分位值可作为河南省青少年青春期(14~18岁)血压评价的参考标准; 预防高血压应从(儿童)青少年时期开始。
短句来源
  “reference standard”译为未确定词的双语例句
    The relative biological value (RBV) of iron of rabbit liver powder, poultry liver powder, fish liver powder, pig liver powder and yeast powder were 88.5%, 85.5%, 48.0% and 132.5% respectively, as measured by prophylactic assay in rats (using ferrous sulfate as reference standard).
    结果表明:五种铁资源中铁吸收利用良好,生物利用率较高。 兔、禽、鱼、猪等肝粉与酵母粉中铁的相对生物价(RBV)分别为:88.5%,85.5%,85.0%,48.0%,132.5%。
短句来源
    After inje-ction of the maize extract from endemic areas,a GC peak often appears atthe same retention time as the Bu reference standard.
    病区玉米提取液向气相色谱仪(GC)进样后,常可出现一个与 Bu 标准毒素的保留时间相同的色谱峰。
短句来源
    Described are the findings of the anthropometrical data of nearly 180000 under 5 children of 29 provinces, autonomus regions and municipalities collected by the State Statistic Bureau in 1992. The provincial average Z scores of height for age and weight for age were lower than the WHO reference standard.
    利用国家统计局1992年对全国29个省、市自治区近18万名五岁以下儿童的体格测量数据,分析了各省、市、自治区儿童的身高/年龄、体重/年龄和体重/身高的Z评分值及其分布。
短句来源
    Height for age Z score(HAZ),weight for age Z score(WAZ)and weight for height Z score(WHZ)were calculated by using the US National Center for Health Statistic reference population,which has been adapted by World Health Organization as international reference standard,with the Center for Disease Control anthropometry software package.
    方法:以WHO推荐的儿童身高和体重标准作参考,采用美国疾病控制中心的Anthro软件计算年龄别身高Z分(HAZ),年龄别体重Z分(WAZ)和身高别体重Z分(WHZ),进行多元回归分析。
短句来源
    Chinese Journal of Food Hygiene. -2000,12(4):~ A method was developed for rapid determination of isoflavone in soybean, based on: extraction of amberlyst-solvent; genistein as reference standard;
    为建立一种检测食物中大豆异黄酮含量的快速分析方法 ,以大豆中的活性成分金雀异黄素为标准品 ,在其紫外最大吸收峰 2 59nm处测定大孔吸附树脂法配合溶剂法提取制得的大豆异黄酮试样的含量 ,大豆异黄酮试样中总异黄酮的含量以金雀异黄素计算为 38.7%。
短句来源
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  reference standard
The described variant of the indentation method requires the preliminary calibration against a reference (standard) glass; i.e., it is a relative method.
      
The obtained values of the parameters can be used in practice as reference standard.
      
The procedure accuracy was evaluated by determining germanium in a reference standard sample of steel after preliminary separation by solvent extraction.
      
IUPAC Recommendations for Reference Standard Samples in pH Measurements
      
WPC 80, sodium caseinate and their hydrolysates were high-quality proteins and had a surplus of essential amino acids compared with the FAO/WHO/UNU (1985) reference standard.
      
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In the present work the relative biological availability (RBA) of iron in the blood and the liver paste of swine has been studied by means of the hemoglobin regeneration technique in chickens. One day-old chickens were first made anemic on a low iron basal diet for 3 weeks, and were then divided into groups to which basal diets with various iron levels (10, 20, 40 ppm Fe) from different iron sources (ferrous sulfate reference standard, whole blood meal of swine and liver paste of swine) were subsequently...

In the present work the relative biological availability (RBA) of iron in the blood and the liver paste of swine has been studied by means of the hemoglobin regeneration technique in chickens. One day-old chickens were first made anemic on a low iron basal diet for 3 weeks, and were then divided into groups to which basal diets with various iron levels (10, 20, 40 ppm Fe) from different iron sources (ferrous sulfate reference standard, whole blood meal of swine and liver paste of swine) were subsequently fed respectively.After 16 days on test diets hemoglobin levels and hematocrit values in the blood of the chickens were measured. The chickens were then sacrificed for measurement of the iron concentration in their livers.Regression lines of each iron source were fitted by plotting final hemo- globin concentrations against the corresponding iron concentrations of the diet fed. Let the slope of the regression line from ferrous sulfate be 100, (i.e. relative bioavailability of ferrous sulfate), the RBA of the other 3 iron sources was as follows; processed whole blood meal of swine was 90.2; raw blood meal of swine 64.6; and the live paste of swine 78.4; but the differences between any two of them are statistically non-significant; i.e. their effects on hemoglobin regeneration are of the same extent.

用小鸡血红蛋白再生试验测定了猪血和肝膏中铁的相对生物利用率(the relative biological availability,RBA)。首先,用低铁基础饲料喂一日龄雏鸡三周造成严重贫血,然后喂给不同剂量的试验铁源16天,观察血红蛋白的再生情况。以硫酸亚铁作为参考标准,测得熟猪血的RBA为90.2%,肝膏为78.4%,生猪血为64.6%。实验结果表明,猪血和肝膏对防治贫血有类似于硫酸亚铁的效果。本实验未发现高温对猪血RBA有不利影响。

Five iron nutritional resources were chemically determined for twelve nutrients and three deleterious items. It was found that they contained 36 to 432 mg% iron and 48 to 67 g% protein. The relative biological value (RBV) of iron of rabbit liver powder, poultry liver powder, fish liver powder, pig liver powder and yeast powder were 88.5%, 85.5%, 48.0% and 132.5% respectively, as measured by prophylactic assay in rats (using ferrous sulfate as reference standard). Most of these resources are common foods,...

Five iron nutritional resources were chemically determined for twelve nutrients and three deleterious items. It was found that they contained 36 to 432 mg% iron and 48 to 67 g% protein. The relative biological value (RBV) of iron of rabbit liver powder, poultry liver powder, fish liver powder, pig liver powder and yeast powder were 88.5%, 85.5%, 48.0% and 132.5% respectively, as measured by prophylactic assay in rats (using ferrous sulfate as reference standard). Most of these resources are common foods, thus these must be of no trouble for infant iron supplements and easily acceptable for their mothers.

兔肝粉、禽肝粉、猪肝粉、鱼肝粉、酵母粉五种铁营养资源都含有丰富的铁、蛋白质等营养成份。以大鼠为生物模型,用预防性评价法(Prophylactic Assay)对五种铁资源中铁生物利用率进行了测定。结果表明:五种铁资源中铁吸收利用良好,生物利用率较高。兔、禽、鱼、猪等肝粉与酵母粉中铁的相对生物价(RBV)分别为:88.5%,85.5%,85.0%,48.0%,132.5%。这些资源可以作为防治婴幼儿缺铁性贫血的补充铁源。大鼠模型对评价铁的生物利用率具有简便、实用、需时短、结果明确的优点。

We have examined samples of maize from Kaschin-Beck's disease areasand non-endemic areas with the method for determination of Butenolide(Bu)bygas chromatography with an electron capture detector(ECD-GC).After inje-ction of the maize extract from endemic areas,a GC peak often appears atthe same retention time as the Bu reference standard.From 40 samples ofmaize from endemic districts the substance suspected of Bu was detected in27 samples,(67.5%).From 32 samples of maize from non-endemic areas,thesubstance...

We have examined samples of maize from Kaschin-Beck's disease areasand non-endemic areas with the method for determination of Butenolide(Bu)bygas chromatography with an electron capture detector(ECD-GC).After inje-ction of the maize extract from endemic areas,a GC peak often appears atthe same retention time as the Bu reference standard.From 40 samples ofmaize from endemic districts the substance suspected of Bu was detected in27 samples,(67.5%).From 32 samples of maize from non-endemic areas,thesubstance suspected of Bu was detected only in 3 samples(9.4%).The differe-nce between the samples from two districts is greatly significant(p=0.004x10~(-4)).The peak of substance suspected of Bu and a peak closed to the des-cribed peak were identified by a combination GC-Ms.In mass spectrum theirmolecular weights(143and 132+x)approach that of Bu(141),but the m/z offragment ions and relative intensity of the ionic peaks between maize extractand Bu are different.Thus the GC peak produced from the maize extract atthe same retention time as the Bu is a differential substance from Bu.It isan interference in GC determination of Bu in grain.The structure and or-igin of the interference are unclear,and its relation to the etiology ofKaschin-Beck's disease remains to be studied further。

本文对大骨节病区和非病区产的玉米用电子捕获检测器气相色谱仪测定丁烯酸内酯(Bu)的方法进行了测定。病区玉米提取液向气相色谱仪(GC)进样后,常可出现一个与 Bu 标准毒素的保留时间相同的色谱峰。在40份病区玉米样品中检出了这种疑为 Bu 的物质有27份(67.5%)。非病区玉米样品32份中检出的只有3份(9.4%),两者差别十分显著(P=0.004×10~(-4))。这一疑为 Bu 的物质及其紧邻的色谱峰经过气相色谱-质谱联用的分析鉴定,它们的分子量(143及132+X)与 Bu(141)接近,而它们的碎片离子的质荷比(m/z)及离子峰的相对强度与 Bu 的有所不同,因此玉米提取液中出现的与 Bu 保留时间相同的色谱峰乃是一种与 Bu 不同的物质。至于它们的化学结构、来源以及是否与大骨节病的发病有何种联系,尚待进一步探究。

 
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